
\usepackage{booktabs}

\begin{table}[h]
\begin{center}
\begin{tabular}{l c c c c}
\toprule
 & Model 1 & Model 2 & Model 3 & Model 4 \\
\midrule
Domestic repression      & $0.99^{***}$    & $0.61^{*}$      & $0.79^{***}$ & $0.84^{***}$    \\
                         & $(0.25)$        & $(0.28)$        & $(0.22)$     & $(0.17)$        \\
Polity score             & $-0.13$         & $-0.08$         & $-0.08$      & $0.02$          \\
                         & $(0.12)$        & $(0.07)$        & $(0.07)$     & $(0.05)$        \\
Elections                & $0.10$          & $-0.54^{\cdot}$ & $-0.08$      & $-0.66^{\cdot}$ \\
                         & $(0.41)$        & $(0.29)$        & $(0.25)$     & $(0.34)$        \\
Leader tenure (log)      & $-0.45^{\cdot}$ & $-0.32^{**}$    & $-0.34^{*}$  & $-0.23$         \\
                         & $(0.24)$        & $(0.10)$        & $(0.14)$     & $(0.15)$        \\
Military dimension index & $-0.56$         & $-0.11$         & $-0.84$      & $0.73^{*}$      \\
                         & $(1.14)$        & $(1.46)$        & $(1.17)$     & $(0.34)$        \\
Party dimension index    & $0.29$          & $-0.96$         & $0.69$       & $0.09$          \\
                         & $(1.75)$        & $(1.81)$        & $(1.35)$     & $(0.54)$        \\
Population (log)         & $-0.53$         & $1.97$          & $3.33^{*}$   & $-0.35$         \\
                         & $(2.07)$        & $(3.23)$        & $(1.59)$     & $(1.97)$        \\
GDP per capita (log)     & $-0.81^{\cdot}$ & $-0.15$         & $-0.00$      & $-0.01$         \\
                         & $(0.42)$        & $(0.56)$        & $(0.32)$     & $(0.51)$        \\
State capacity index     & $0.24^{***}$    & $0.13^{*}$      & $0.15^{**}$  & $0.09^{*}$      \\
                         & $(0.07)$        & $(0.06)$        & $(0.05)$     & $(0.04)$        \\
Theta                    &                 &                 & $0.71^{***}$ &                 \\
                         &                 &                 & $(0.12)$     &                 \\
\midrule
pseudo.r.squared         & $0.43$          & $0.53$          & $0.22$       & $$              \\
nobs                     & $549$           & $549$           & $549$        & $731$           \\
AIC                      & $485.45$        & $1518.78$       & $1150.95$    & $3880.26$       \\
BIC                      & $735.31$        & $1768.65$       & $1400.82$    & $4178.90$       \\
Log Likelihood           & $-184.72$       & $-701.39$       & $-517.48$    & $-1875.13$      \\
R$^2$                    & $$              & $$              & $$           & $0.28$          \\
Adj. R$^2$               & $$              & $$              & $$           & $0.21$          \\
within.r.squared         & $$              & $$              & $$           & $0.03$          \\
Sigma                    & $$              & $$              & $$           & $3.30$          \\
\bottomrule
\multicolumn{5}{l}{\scriptsize{$^{***}p<0.001$; $^{**}p<0.01$; $^{*}p<0.05$; $^{\cdot}p<0.1$}}
\end{tabular}
\caption{Robustness tests. Main Model (Model 2) with different model specifications.}
\label{main_reg}
\end{center}
\end{table}
